ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MTNORSMESM..................JJDIM360 Ver 1.28 (29 Oct 2014) - 1620000/03002405EUROPEAN PATENT APPLICATIONA320160907EP14187298.620141001svenen145107720140915SE2016090720163620160406201614E06B 7/02 20060101AFI20160802BHEP F24F 13/24 20060101ALI20160802BHEP deSchalldämpfungsanordnungenSilencing arrangementfrAgencement de silençage2Casamja AB101481394P 14-0311/CLWGötlundagatan 34124 71 BandhagenSEKarlén, LennartSekreterarbacken 47128 38 SKARPNÄCKSECastwall, HansGransätersgatan 1 A761 32 NORRTÄLJESEGroth & Co. KB101378062P.O. Box 6107102 32 StockholmSEALATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMKMTNLNOPLPTRORSSESISKSMTRBAME20160907201636

According to the invention, there is provided a silencing arrangement for installation (11) in a through opening in a window frame or in another opening through a separating surface. The arrangement comprises a plurality of air channels (14) which extend along the entire or substantially the entire depth of the silencing arrangement, which air channels are separated by sound absorbing elements (13) which are fixated relative each other. A first end of each of at least two of the sound absorbing elements has another width than the respective other end. The at least two sound absorbing elements of the sound absorbing elements are alternately arranged such that every other of these at least two sound absorbing elements taper in the depth direction of the silencing arrangement, and the remaining of these at least two sound absorbing elements expand in the depth direction, thereby making at least one of the air channels disposed at an angle relative the depth direction of the silencing arrangement.

P 14-0311/CLWEP14187298.6Casamja AB

1. claims: 1-7, 11, 12
Silencing arrangement with sound absorbing elements of specific shape forming air channels, at least two of the elements having at their ends different widths and rounded edges with a radius of at least 2 mm.

2. claims: 8-10
Silencing arrangement, the density of the elements not being constant

3. claims: 13-15
Silencing arrangement with particular dimensions

1-122MN20160808E06BF24FFR2915270A3DIR AIR OY [FI]20081024X1,4,11,12Y10* page 2, line 29 - page 4, line 19; figures 1-3 *FR2108344A5SOUND ATTENUATORS LTD19720519X1,3,4* figures 1,2 *FR2466824A1FIAT RICERCHE [IT]19810410X1,2,5,7* figure 2 *WO2005108696A1MATTHEWS CHRISTOPHER JAMES [AU]; SILENCEAIR INTERNAT PTY LTD [AU]20051117X1,5,7* figures 2,3,5 *GB1344268ASOUND ATTENUATORS LTD19740116X1,3* figure 4 *BE521580ABOLT, BERANEK AND NEWMAN19530814Y10* page 5, line 2 - line 58; figure 1 *Knerr, GerhardMunich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